INSTALL SONAME 'auth_named_pipe'; CREATE USER 'USERNAME' IDENTIFIED WITH named_pipe; connect pipe_con,localhost,$USERNAME,,,,,PIPE; SELECT USER(),CURRENT_USER(); USER() CURRENT_USER() USERNAME@localhost USERNAME@% disconnect pipe_con; connection default; DROP USER 'USERNAME'; CREATE USER nosuchuser IDENTIFIED WITH named_pipe; ERROR 28000: Access denied for user 'nosuchuser'@'localhost' DROP USER nosuchuser; UNINSTALL SONAME 'auth_named_pipe';